MESON Chess Problem Database

Problem Display
PID: 2157 (Bb6/q1Q4p/Rn1N2p1/1p1b4/2P1p3/r2kP2n/P2P4/B2K3N w - - 0 1)

Cameron, William E

Source?, 0000

Bb6/q1Q4p/Rn1N2p1/1p1b4/2P1p3/r2kP2n/P2P4/B2K3N

#2

11 + 11

1679 American Chess Nuts 1868
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1950

SOLUTION

  • SOUND
  • Sets
    • 1...Qb7
      • 2.Rxa3#
    • 1...Qxc7
      • 2.Rxa3#
    • 1...Bxc4
      • 2.Bxe4#
    • 1...Be6
      • 2.Bxe4#
    • 1...Bf7
      • 2.Bxe4#
    • 1...Bg8
      • 2.Bxe4#
    • 1...Sg1
      • 2.Sf2#
    • 1...Sf2+
      • 2.Sxf2#
    • 1...Sf4
      • 2.Sf2#
    • 1...Sg5
      • 2.Sf2#
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qf1#
      • 1...Sf2+
        • 2.Sxf2#
      • 1...Qxf7
        • 2.Rxa3#
      • 1...Bxf7
        • 2.Bxe4#
      • 1...Sg1
        • 2.Sf2#
      • 1...Sf4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(i);N_GUARD::R(H),XR(a)
    • Q(i);N_GUARD,XQ(J)::R(H),XR(a)
    • B(f);OGATE,XP(G)::B(K),XP(d)
    • B(f);OGATE::B(K),XP(d)
    • S(c);N_GUARD::S(C)
    • S(c);CHECK,N_GUARD::S(C),XS(c)
  • Actual
    • Q(J);
    • Threat
      • QAB(J)
    • Vars
      • S(c);CHECK,N_GUARD::S(C),XS(c)
      • Q(i);N_GUARD,XQ(J)::R(H),XR(a)
      • B(f);OGATE,XQ(J)::B(K),XP(d)
      • S(c);N_GUARD::S(C)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).